I have a great condition, clear 6k that I no longer need. I can post pics but I'm sure you all know what a 6k looks like the smallest spacer has been sanded down until it wasn't glossy because I was going to test some glue on it before doing a mod to the actual tube. I have since abandoned the project. On the tube itself in the location of the frenulum is a small hole drilled and smoothed. I was going to use it for a frenum piercing cable but it didn't work out. The hole is approx the thickness of the cable for iPod headphones (lol the only common thing I could think of.. It's a tiny hole, probably less than a tenth of an inch in diameter).. other than that, it's like new. I even have the box. I'd like $55 shipped to anywhere in the continental US. PM or post if pics are required